We don't really deserve to get zero coins just because we've hit one red platform. Instead you should just award whatever the max coins earned on that run, upon death, with the red platforms resetting the combo (but not resetting your max)
Also this doesn't feel very responsive. I realize he's supposed to be in space but it just feels like the controls fight with the player too much. Especially when the platforms come at opposite ends of the screen, you get ridiculous momentum, which makes it near-impossible to then go back again to the opposite side (if needed) so your combo tends to end there. Say if the platforms go leftmost, rightmost, leftmost for example.
Also unless there's an easier way to grind for gold, or if it awards more gold the higher up you get, all the prices are ridiculous 100% grind. And the million gold achievement? You really thought that was reasonable?
Granted you could be doing amazing and have some large gold combo but then oops you touch one red platform (probably because the controls are fighting with you again) too bad so sad you only get 0 gold.
This game idea has been done before. I can't say the other game that comes to mind is better (it's not) but this idea isn't new. (Astro Jump: Jim in Space as one example) I will leave it up to the readers to compare the two games and see how similar they are but it's a point to be made.